ArticleJournal of molecular neuroscience : MN2020
Tryptophan Improves Memory Independent of Its Role as a Serotonin Precursor: Potential Involvement of Microtubule Proteins.
Article in Journal of molecular neuroscience : MN, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.
What it found
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
7 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Tryptophan modulation in individuals with attention deficit hyperactivity disorder: a systematic review.Journal of neural transmission (Vienna, Austria : 1996) · 2022Pooled it
- Nutritional Interventions for Perimenopausal Anxiety and Depression Targeting Tryptophan and GABA Pathways: A Narrative Review.Nutrients · 2026Review
- Marine-derived PUFAs and peptides for aging-related memory deficits: processing methods, pharmacokinetics, mechanistic insights, and clinical application.Frontiers in nutrition · 2026Review
- How the gut microbiome shapes learning and memory: A comprehensive review.IBRO neuroscience reports · 2025Review
- Structural changes of tubulin by interacting with ΔBMC neuroscience · 2025Article
- The Crucial Role of the Blood-Brain Barrier in Neurodegenerative Diseases: Mechanisms of Disruption and Therapeutic Implications.Journal of clinical medicine · 2025Review
- Internal Clocks, mGluR7 and Microtubules: A Primer for the Molecular Encoding of Target Durations in Cerebellar Purkinje Cells and Striatal Medium Spiny Neurons.Frontiers in molecular neuroscience · 2019Article
Corrections and comments
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Authors and funding
3 authors.
Funding
Abstract
There are numerous studies examining the effects of tryptophan on behavioral processes, including learning and memory. While most studies suggest that fluctuations in tryptophan levels exert their effects through modifications in serotonergic neurotransmission, there are other neural mechanisms that have accounted for the observed outcomes as well. In this study, we demonstrated that acute administration of tryptophan modulates spatial and object-recognition memory independent of its role as a serotonin precursor. One possible explanation for the observed improvement in memory is through the interaction between tryptophan and microtubule proteins. Microtubules are key components involved in the morphological and functional development of neurons. Moreover, several models suggest that microtubule dynamics contributes to neural network connectivity, information processing, and memory storage. Here, we examined the interaction between tryptophan and microtubules and indicated that tryptophan is capable of a creating a static interaction with the tubulin dimer through a single binding site. This interaction induces the rate of tubulin assembly and as a result increases polymer mass.
Indexed as
Identifiers
31897970What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.